package cn.edu.nju.oraldefense.service;

import java.util.List;

import cn.edu.nju.oraldefense.model.Comment;
import cn.edu.nju.oraldefense.model.Paper;
import cn.edu.nju.oraldefense.model.Teacher;

public interface CommentService {

	public List getByPaper(Paper paper);

	public Comment getById(int id);
	
	public List getByTeacherAndMonth(Teacher teacher, String yearmonth,String nextyearmonth);

	public void addComment(Comment c);
	
	public void removeComment(Comment c);

	public void modifyComment(Comment c);

}
